Small Excel spreadsheet of 11.6 KB whose name suggests a list of antivirus products. It is not a schematic, boardview or firmware file and names no device, board or brand, so its relevance to hardware repair is limited. The exact contents and their accuracy are not stated. It can be opened in Microsoft Excel, LibreOffice Calc or another spreadsheet program. Treat it as a general reference document, check how current the information is, and do not expect board-level data from it.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @BiosSchematicBoardviewNoLimit. Enginerys does not host this file.